{
  "manageEntity": {
    "action": "Create",
    "entityId": "1161902113",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"SNAILS! \",\"entity_id\":1007375766,\"track_timestamp_s\":67}}",
    "nonce": "0xf429821e5b2714fd9559959da06e26ae5c81a99a704b0f7509daf7d72c8fba22",
    "signature": "0x637edcec9957dd8d08a365eae538c6cdbfc4e723c6848ec18f9b5409c45cb4f91bda72437f6e7aed978b4d03383620ba6083b6459b4aaf43c0db684f90a294ed1b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}